McKesson Petrolatum Dressing 4X4 inch sheet Sale! from $2.00 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Non adherent sterile pad A fine mesh gauze impregnated with 3% Xeroform Bismuth Tribromophenatel in a petroleum blend. (USE ONLY AS PROVIDER DIRECTS)